EVEN A MILE COULD LET YOU CRASH.. ITS VERY CRITICAL ... if you land short you hit the obstacles if you land long you might overrun the runway and fall into the sea...
Regarding GS/2.. Don't you think using the TAS would be more realiable.. ??
for airbus you need a minimum of 600 FT/M during the approach to maintain a constant approach path then from 1 mile it might vary to maintain the GP.
USING VISUAL AIDS FOR LANDING COULD BE a catastrophic decision for TIRED pilots who've done 4 or 5 sectors a day.. specially a guy with glasses..
